Chem analysis to start at best site for low-gravity industry

In summary: Ceres has abundant water ice in its outer mantle and it has recently been found to have nitrogen in the form of ammonia-bearing minerals.
  • #1
marcus
Science Advisor
Gold Member
Dearly Missed
24,775
792
Dawn spacecraft is equipped for gamma and neutron spectroscopy to analyze the chemical make-up of Ceres surface material down to a depth of 1 meter.
To do this it must first descend to a low altitude--the target is 375 km. It has already descended to within 600 km and it seems likely to reach its goal.

The dwarf planet has abundant water ice in its outer mantel mixed with rock. This is clear from its measured density of 2 g/cc and from its geometry which shows a degree of layered differentiation.

Nitrogen in the form of ammonia-bearing minerals was recently reported at a AAS conference (Division for Planetary Sciences). That's a key element (in manufacturing as well as in biology).

More pieces of the puzzle should be falling into place as soon as the descent to final altitude is complete.
 
Astronomy news on Phys.org
  • #2
This is basically how the gamma and neutron spectroscopy works
.
gamma.jpg

High energy (cosmic ray) proton busts a nucleus producing fast neutrons which
(1) activate atoms in the soil--which then identify themselves when they emit gamma rays of characteristic frequencies.
(2) can also either escape immediately or can be moderated (slowed) by successive collisions with hydrogen nuclei. Comparing the ratio of slowed neutrons to fast ones will indicate the abundance of hydrogen (hence water ice) in the soil.
 
  • #3
I expect that humans will eventually decide to establish chemical and material manufacturing in a low-gravity environment. From which it will be less costly and risky to launch their goods into space get their manufactures delivered where these are needed. More economical in other words.

AFAICS In the inner Solar System, Ceres is the best business location (for raw materials and manufacturing).
Partly because of the low gravity (3% of Earth).
Partly because a subsurface site in icy material provides atmosphere containment and shielding.
Partly because surrounding icy material affords a heat sink for power plant cooling, making power generation more economical.
 
Last edited:

1. What is chemical analysis and why is it important for low-gravity industry?

Chemical analysis is the process of determining the chemical makeup of a substance or material. It is important for low-gravity industry because it allows scientists to understand the properties and behavior of materials in a low-gravity environment, which may be different from their behavior on Earth. This information is crucial for developing safe and effective technologies for use in space.

2. What factors should be considered when choosing the best site for low-gravity industry?

There are several factors that should be considered when choosing a site for low-gravity industry. These include the strength and consistency of the gravitational force, accessibility to resources and transportation, and potential hazards such as radiation or extreme temperatures. Other factors such as political stability and the presence of a supportive infrastructure should also be taken into account.

3. How does low gravity affect chemical reactions and processes?

In a low-gravity environment, objects have less weight and therefore experience less force. This can have a significant impact on chemical reactions and processes as it alters the rate of diffusion, mixing, and settling of particles. It can also affect the behavior of gases, liquids, and solids, making it challenging to accurately predict and control reactions and processes.

4. What are some potential applications of low-gravity industry?

The potential applications of low-gravity industry are vast and varied. Some examples include the production of pharmaceuticals, materials, and chemical products in space, the development of space-based manufacturing and recycling technologies, and the extraction and processing of resources from celestial bodies such as the moon and asteroids. Low-gravity industry also has potential applications in biotechnology, agriculture, and energy production.

5. How can chemical analysis help mitigate risks in low-gravity industry?

Chemical analysis can help mitigate risks in low-gravity industry by providing a better understanding of the properties and behavior of materials in space. This information can be used to develop appropriate safety protocols and design materials and technologies that can withstand the unique challenges of a low-gravity environment. Chemical analysis can also help identify potential hazards and develop ways to mitigate their impact on operations in space.

Similar threads

  • Sci-Fi Writing and World Building
Replies
21
Views
855
Back
Top